LOS ANGELES, CA - MARCH 15: Singer Christina Aguilera arrives at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singer Christina Aguilera arrives at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singer Christina Aguilera arrives at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singer Christina Aguilera arrives at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singer Christina Aguilera arrives at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singer Christina Aguilera and executive producer Mark Burnett arrive at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singers Adam Levine and Cee Lo Green arrive at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singers Adam Levine and Cee Lo Green arrive at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singer Cee Lo Green arrives at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singer Cee Lo Green arrives at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singers Adam Levine and Cee Lo Green arrive at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singer Adam Levine arrives at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singer Adam Levine arrives at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: TV host Carson Daly arrives at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)

NBC's "The Voice" Press Conference

LOS ANGELES, CA - MARCH 15: Singer Blake Shelton arrives at NBC's press conference for the their new Show "The Voice" on March 15, 2011 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)